Related Compounds
Compounds connected by the same goals, effects, or research topics.
Herb Profile
Rhodiola
Rhodiola rosea
Rhodiola rosea is a stimulating adaptogen best matched to stress related fatigue and mental stamina, not bedtime calming.
Last reviewed: •25 sources citedReport a correctionProfile-wide ·C Limited
Use extra caution — Short term human studies often report few/no obvious adverse reactions, but trial reporting quality is weak and interaction data are incomplete. Details
- Evidence
- Limited Evidence
- Typical onset
- Varies by prep
- Safety rating
- High caution
- Best for
- Adaptogen, Stress Resilience, Fatigue Reduction, Cognitive function
- Avoid / review if
- Caution Insomnia, Anxiety Sensitivity, Bipolar/Mania Vulnerability
Verdict: RhodiolaMaybe
Best for
- Stress paired with fatigue or burnout
- Mental tiredness and low drive
- Daytime energy without stimulants
Not ideal for
- Night-time calm or sleep (it can be activating)
- Acute anxiety
- Bipolar spectrum conditions without guidance
- Evidence confidence
- Modest — promising for fatigue, mixed and smaller for mood
- Expected onset
- Days to ~2 weeks
- Give it
- 3–6 weeks
Bottom line: A daytime adaptogen aimed at stress-driven fatigue rather than tension. Take it earlier in the day — it can be too activating for evening use.
Safety: Can be over-stimulating and disrupt sleep if taken late; discuss with a clinician if you have a bipolar-spectrum condition or take stimulants or antidepressants.
On the evidence: Several human trials for fatigue and stress, but heterogeneous extracts and small samples.
How strong is the evidence?Limited–moderate
Why not higher
- Extracts and rosavin/salidroside content vary widely between products
- Trials are small and results are inconsistent
- Strongest signal is for fatigue, weaker for mood or anxiety
Why not lower
- Several human trials point toward reduced fatigue under stress
- A plausible mechanism and a long traditional-use history
Practical takeaway: Reasonable to try for stress-driven fatigue, taken earlier in the day. Treat it as mild support, not a primary treatment for a mood or anxiety condition.
Next stepsWhere to go next — guides & comparisons
Start here
New to this? Begin with Best adaptogens for stress.
Compare first
- Rhodiola vs. Ashwagandha — if choosing between energizing and calming adaptogens
Continue reading
- If you want help sleeping → Sleep guides
- If you want help with anxiety or stress → Anxiety & stress guides
- If you want to browse more herbs → All herbs
Expanded editorial review
What this profile is built to answer
Informational to commercial: understand what Rhodiola rosea can plausibly support — stress-related fatigue, burnout, and mental/physical endurance — while choosing a standardized extract and respecting an activating, evidence-limited profile.
- Keep fatigue, stress/burnout, mood, and endurance claims separate instead of merging them into one adaptogen promise.
- Weight the evidence honestly: most human trials are small, short, and at high risk of bias, and results are contradictory.
- Prefer extracts standardized to rosavins and salidroside, and flag the activating profile (timing, stimulant and bipolar cautions) before product guidance.
| Use case | Evidence | Best fit | Typical range | Safety context |
|---|---|---|---|---|
| Stress-related fatigue and burnout | Preliminary to moderate | Adults with low-drive, stress-linked tiredness rather than a sleep or medical cause | 200-400 mg/day standardized extract, usually earlier in the day | Can feel activating; avoid late dosing and review stimulant and bipolar context. |
| Mental fatigue and endurance | Preliminary / mixed | Short-term mental stamina under stress or fatigue | Study doses commonly 200-600 mg/day standardized extract | Trials are small and inconsistent; expect a subtle effect, not stimulation. |
| Physical/endurance performance | Preliminary | Training-adjacent fatigue experiments | Acute and short-term dosing varies by study | Evidence is limited and not a substitute for training, sleep, or recovery. |
| Mood and low-mood symptoms | Preliminary | Mild stress-linked low mood, not a treatment for depression | Trial-specific extracts over weeks | Not a replacement for mental-health care; seek evaluation for persistent symptoms. |
Product and form choices
- Standardized 3% rosavins / 1% salidroside extract
- Best defaultMatches the marker profile used in most human trials.
- Plain root powder
- Use cautionActive content is unclear without standardization; harder to dose consistently.
- Rhodiola vs ashwagandha
- Depends on the goalRhodiola skews activating for fatigue; ashwagandha skews calming for stress and sleep.
- Stacked in a proprietary "energy" blend
- Skip if doses are hiddenBlends often bury rhodiola dose and add stimulants.
Safety checks
- Rhodiola can feel stimulating — take it earlier in the day and start low to avoid jitteriness, irritability, or sleep disruption.
- Use clinician guidance with bipolar history, stimulant or antidepressant medication, and during pregnancy or breastfeeding, where data are limited.
- It is a stress-and-fatigue adjunct, not a treatment for depression, an anxiety disorder, thyroid disease, anemia, or sleep apnea — persistent fatigue deserves evaluation.
How to choose a product
- Look for Rhodiola rosea standardized to rosavins and salidroside, with the marker percentages disclosed.
- Match timing to the goal: morning or early afternoon, not evening.
- Start at the lower end of the range and assess over 1-4 weeks rather than chasing a same-day hit.
- Avoid proprietary energy blends that hide the rhodiola dose or add undisclosed stimulants.
Safety
Safety & Cautions
Short term human studies often report few/no obvious adverse reactions, but trial reporting quality is weak and interaction data are incomplete. Potential activating effects should be acknowledged.
High caution
Caution level: High. Multiple caution categories apply, or the record uses avoid/contraindication language.
- Interaction-AwareMedication or interaction context is explicitly noted.
- Stimulant-Like ProfileStimulant-like or activating caution language is present.
- Pregnancy/Breastfeeding CautionPregnancy or breastfeeding caution language is present.
Detailed safety fields
Pregnancy, breastfeeding, and contraindications
- Caution Insomnia
- Anxiety Sensitivity
- Bipolar/Mania Vulnerability
- Stimulant Use
- Antidepressants/MAOIs/SSRIs/SNRIs
- Cardiovascular Conditions
- Pregnancy/Breastfeeding
- And High Dose Extracts Until Better Interaction Extraction Is Done.
Safety classifications
- Interaction-Aware: Medication or interaction context is explicitly noted.
- Stimulant-Like Profile: Stimulant-like or activating caution language is present.
- Pregnancy/Breastfeeding Caution: Pregnancy or breastfeeding caution language is present.
Full safety note
- Short term human studies often report few/no obvious adverse reactions, but trial reporting quality is weak and interaction data are incomplete. Potential activating effects should be acknowledged.
Safety labels
- Interaction-Aware
- Stimulant-Like Profile
- Pregnancy/Breastfeeding Caution
Evidence-based safety
Caution when combined
Severity and certainty are shown separately. A high-priority caution can still be theoretical: these pairings are screened from shared contraindication mechanisms and are not automatically documented clinical interactions. Provenance identifies the source fields that produced each flag; it does not upgrade the certainty of the pairwise claim.
High-Priority Caution
26 flagged pairingsSerotonergic activity
High-Priority Caution
26 flagged pairingsSerotonergic activity
Representative pairings are shown below. Large mechanism groups are intentionally summarized to keep profiles focused and crawl-efficient.
Serotonergic activityCertainty: Theoretical
Data provenance recorded for 26 of 26 pairings in this mechanism group.
- 5-HTP — Theoretical interaction certainty
- Caffeine — Theoretical interaction certainty
- crocetin — Theoretical interaction certainty
- crocin — Theoretical interaction certainty
- Crocus Sativus — Theoretical interaction certainty
- Damiana — Theoretical interaction certainty
- DMT — Theoretical interaction certainty
- Ginkgo — Theoretical interaction certainty
- Panax Red Ginseng — Theoretical interaction certainty
- Panax White Ginseng — Theoretical interaction certainty
- Harmaline — Theoretical interaction certainty
- Harmine — Theoretical interaction certainty
+14 more pairings share this mechanism. Use the Safety Checker to review a specific combination.
Evidence
Evidence Summary
Evidence lens
Read as directional context, not settled clinical proof.
LimitedLimited Evidence
Human clinical evidence: Present in source signals
Mechanistic / preclinical: Mechanism mapped — Neurotransmitter Modulation · Stress Response Modulation · AMPK Signaling
Research maturity: Emerging research — Long Term Human Evidence May Be Limited.
Safety boundary: Safety note available — Short term human studies often report few/no obvious adverse reactions, but trial reporting quality is weak and interaction data are incomplete.
This profile cites 25 human studies.
Study design details
Evidence Grade
Grade C: Limited Evidence
Evaluation of methodological rigor, population reach, and evidence alignment.
- Design Match
- Meta-analysis
- Risk of Bias
- Low
- Consistency
- Consistent
Strongest recorded design is a meta-analysis, drawn from 21 recorded studies, 14 in people. No disagreement is recorded across them.
How evidence grades work
Each grade reflects the strength and consistency of published human evidence — not marketing claims. Grades are based on study count, design quality, effect size, consistency, and recency.
- Strong
- Multiple RCTs, consistent direction, adequate effect size
- Moderate
- Some RCTs or consistent observational data in humans
- Preliminary / Mixed
- Animal or in-vitro only, or conflicting human data
- Traditional / Theoretical
- Traditional use only; no controlled human trials
Clinical Study Summaries (22)12 human evidence sources · 6 human trials · ~60 participants across 1 human evidence source with reported N · Consistency not yet classifiable
Filter by study class
Showing 22 of 22 studies.
What the evidence actually shows
This table contains 22 structured sources, including 12 human evidence sources; 6 are human trials. Across 1 human evidence source with a reported sample size, the approximate participant total is 60; overlapping publications may include some of the same people. Source-to-conclusion relationships are not classified in this structured set, so consistency is not yet classifiable.
Profile-wide evidence grade: see the profile grade above · Confidence: not separately assigned
What would change our conclusion?
Larger, well-controlled human trials using comparable populations, doses, preparations, and clinically meaningful outcomes could materially strengthen or weaken this conclusion. Replication in a different population or a high-quality synthesis resolving current disagreement could also materially change confidence.
| Study | Design | N | Dose | Duration | Population | Outcome | Result & magnitude | Source |
|---|---|---|---|---|---|---|---|---|
Plant Adaptogens-History and Future Perspectives Todorova V et al. · Nutrients · 2021 Background | Meta-analysis Statistically combines results from multiple eligible studies; confidence still depends on the quality, consistency, and directness of those studies. | — | — | — | — | — | — | PubMed → |
Background | Meta-analysis Statistically combines results from multiple eligible studies; confidence still depends on the quality, consistency, and directness of those studies. | — | — | — | — | — | Rhodiola improved VO2max (ES 0.32), time to exhaustion (ES 0.38), and time-trial performance (ES -0.40); antioxidant markers improved and creatine kinase/lactate decreased. | PubMed → |
Rhodiola rosea for physical and mental fatigue: a systematic review 2012 Background | Systematic review Uses a predefined method to find and evaluate relevant studies, but may or may not pool their results statistically. | — | — | — | — | — | — | DOI → |
2023 Background | Systematic review Uses a predefined method to find and evaluate relevant studies, but may or may not pool their results statistically. | — | — | — | — | — | — | DOI → |
Effects of Rhodiola Rosea Supplementation on Exercise and Sport: A Systematic Review 2022 Background | Systematic review Uses a predefined method to find and evaluate relevant studies, but may or may not pool their results statistically. | — | — | — | — | — | — | DOI → |
Background | Systematic review Uses a predefined method to find and evaluate relevant studies, but may or may not pool their results statistically. | — | — | — | — | — | Rhodiola studies reported possible benefits across stress, depressive symptoms, sleep, and cognition over roughly 3–16 weeks. | PubMed → |
Show 16 more studies
PubMed · Planta Med · 2009 Background | Randomized controlled trial Randomly assigns participants to interventions or controls, reducing many sources of bias when the trial is conducted well. | n=60 | — | — | — | — | — | PubMed → |
Rhodiola Rosea for Mental and Physical Fatigue in Nursing Students: A Randomized Controlled Trial 2014 Background | Randomized controlled trial Randomly assigns participants to interventions or controls, reducing many sources of bias when the trial is conducted well. | — | — | — | — | — | — | PubMed → |
Quality Evaluation of Randomized Controlled Trials of Rhodiola Species Li et al. · Evidence-Based Complementary and Alternative Medicine · 2021 Background | Randomized controlled trial Randomly assigns participants to interventions or controls, reducing many sources of bias when the trial is conducted well. | — | — | — | — | — | — | Source → |
Background | Randomized controlled trial Randomly assigns participants to interventions or controls, reducing many sources of bias when the trial is conducted well. | — | — | — | — | — | Low-dose Rhodiola improved several bench-press outcomes; both low and high doses improved leg-press 1RM, and Stroop performance improved across Rhodiola conditions. | PubMed → |
Background | Randomized controlled trial Randomly assigns participants to interventions or controls, reducing many sources of bias when the trial is conducted well. | — | — | — | — | — | The main findings indicated only trivial-to-small effects of Rhodiola on mental fatigue, visuocognitive processing, and perceived exertion. | PubMed → |
Background | Randomized controlled trial Randomly assigns participants to interventions or controls, reducing many sources of bias when the trial is conducted well. | — | — | — | — | — | Rhodiola improved Yo-Yo IR2 versus placebo (p=0.046), improved mean repeated-sprint time, reduced post-exercise lactate, and improved reaction time and decision accuracy under fatigue. | PubMed → |
Ivanova Stojcheva E et al. · Molecules · 2022 Background | Narrative review Summarizes selected literature without the full prespecified search and selection methods of a systematic review. | — | — | — | — | — | — | PubMed → |
Herbal medicine for sports: a review Sellami M et al. · J Int Soc Sports Nutr · 2018 Background | Narrative review Summarizes selected literature without the full prespecified search and selection methods of a systematic review. | — | — | — | — | — | — | PubMed → |
PubMed · Phytomedicine · 2010 Background | Narrative review Summarizes selected literature without the full prespecified search and selection methods of a systematic review. | — | — | — | — | — | — | PubMed → |
Salidroside and exercise performance in healthy active young adults Schwarz et al. · Journal of the International Society of Sports Nutrition · 2024 Background | Other / unclear The study design is not yet classified clearly enough to infer its place in the evidence hierarchy. | — | — | — | — | — | — | Source → |
Rhodiola rosea as an adaptogen to enhance exercise performance Tinsley et al. · British Journal of Nutrition · 2023 Background | Other / unclear The study design is not yet classified clearly enough to infer its place in the evidence hierarchy. | — | — | — | — | — | — | Source → |
The effects of Rhodiola Rosea supplementation on depression, anxiety and mood Konstantinos; Heun · Global Psychiatry · 2020 Background | Other / unclear The study design is not yet classified clearly enough to infer its place in the evidence hierarchy. | — | — | — | — | — | — | Source → |
Adaptogenic Botanicals with Emphasis on Rhodiola rosea and Withania somnifera Machín et al. · European Journal of Medicinal Plants · 2023 Background | Other / unclear The study design is not yet classified clearly enough to infer its place in the evidence hierarchy. | — | — | — | — | — | — | Source → |
The Effectiveness of Rhodiola rosea Preparations in Alleviating Life-Stress Symptoms Stojcheva; Quintela · Molecules · 2022 Background | Other / unclear The study design is not yet classified clearly enough to infer its place in the evidence hierarchy. | — | — | — | — | — | — | Source → |
Effects of Rhodiola Rosea Supplementation on Exercise and Sport Lu et al. · Frontiers in Nutrition · 2022 Background | Other / unclear The study design is not yet classified clearly enough to infer its place in the evidence hierarchy. | — | — | — | — | — | — | Source → |
Perspective on Roseroot (Rhodiola rosea) Studies 2009 Background | Other / unclear The study design is not yet classified clearly enough to infer its place in the evidence hierarchy. | — | — | — | — | — | — | PubMed → |
Dosing & Timing
- Dose guidance
- Exercise/performance review notes ~200 mg standardized extract containing ~1% salidroside and ~3% rosavin about 60 minutes pre exercise; recent higher dose trials used ~1500–2400 mg/day for 4–30 days. Pure salidroside study used 60 mg/day for 16 days. | Rhodiola rosea extract standardized for salidroside/rosavins; pure salidroside should be tracked separately from whole root extract. | Exercise/fatigue dosing and stress/mood claims must be separated; RCT reporting quality for Rhodiola is often weak or unclear.
How Rhodiola works
Simplified mechanism pathway based on preclinical and pharmacological evidence. Does not confirm clinical efficacy.
Mechanism Pathway — How Rhodiola Works
CompoundTarget / ReceptorMechanismEffect / Outcome
Mechanisms & biological pathways
Preclinical pathways. Proposed mechanisms from in vitro and animal research; these do not confirm clinical outcomes in humans.
- Neurotransmitter Modulation
- Stress Response Modulation
- AMPK Signaling
Active Compounds
Key constituents studied in Rhodiola, with full pharmacology and safety profiles.
Compare related active botanicals
Explore botanicals with similar chemistry, effects, or safety considerations in the Botanical Activity Atlas.
Guides that use Rhodiola
Compare & Sourcing
Compare side-by-side tradeoffs or verify active marker guidelines.
Sourcing options
Rhodiola product picks
Recommendation status
Product recommendations are not shown for this profile because the current site safety and monetization policy does not permit them.
Product form & quality guidelines
When sourcing Rhodiola, verify the label for:
- Standardized extract: Confirm active content percentages on the supplement facts panel (e.g. standardized to specific marker compounds) rather than simple raw herb weights.
- Third-party testing: Look for independent purity labels (USP, NSF, ConsumerLab, or Eurofins) to ensure the product is free from heavy metals, solvents, and contaminants.
- Form bioavailability: Ensure the form matches evidence-supported configurations (e.g. standardized active extracts like bacosides, withanolides, or curcuminoids) for optimal onset and digestion tolerance.
Safety first · Harm reduction
This information is educational and not medical advice. Start low, avoid risky combinations, and consult a licensed clinician before making health decisions—especially if you use medications, have diagnosed conditions, or are pregnant/breastfeeding.
Learn how we evaluate confidence, safety, and intensity on the methodology page.
Editorial Review
Checked against primary sources, cited evidence, and contraindication language before publication. Evidence claims, safety language, and affiliate modules are reviewed independently. Not personal medical advice.
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Botanical profile context
How to interpret Rhodiola
Rhodiola herb profile with evidence context, key research topics, source notes, safety context, and references presented in an evidence-first format. Use this herb profile as a starting point for evidence review, not as a recommendation to start a new supplement. Botanical products can vary by plant part, extract ratio, standardization, dose, and contaminant testing, so two labels with the same common name may not behave the same way.
When reviewing Rhodiola, compare the traditional-use context against the human evidence, mechanism notes, and safety cautions. Pay special attention to pregnancy, breastfeeding, liver or kidney disease, blood-pressure effects, sedation, stimulation, anticoagulant use, antidepressants, and any prescription medication overlap.
For product decisions, prefer transparent labels, named extracts, clear serving sizes, and third-party quality testing. Avoid treating a long list of possible mechanisms as proof that an herb will solve a specific condition.